Raw plant material is mixed with ethanol under pressure to extract essentialelements.The resulting crude oil and ethanol with the dissolved essential elements isseparatedfrom the raw plant material and filtered to remove particulates, waxes,lipids, fats anddissolved impurities. The ethanol is then evaporated from the resultingmixture of crude oiland ethanol, and the remaining crude oil then undergoes decarboxylation anddistillationto obtain the essential elements. The ethanol may be chilled before adding itto the rawplant material.